Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS7334718 B2
Publication typeGrant
Application numberUS 10/764,619
Publication dateFeb 26, 2008
Filing dateJan 26, 2004
Priority dateNov 30, 2000
Fee statusPaid
Also published asCA2429706A1, CA2429706C, DE60129834D1, DE60129834T2, EP1337187A1, EP1337187A4, EP1337187B1, US6398795, US6716222, US7882995, US8448831, US20020065523, US20020082616, US20040158263, US20080128470, US20110186613, WO2002043596A1
Publication number10764619, 764619, US 7334718 B2, US 7334718B2, US-B2-7334718, US7334718 B2, US7334718B2
InventorsGary McAlister, Robert L. Sakal
Original AssigneeBoston Scientific Scimed, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Stapling and cutting in resectioning for full thickness resection devices
US 7334718 B2
Abstract
A stapling unit for use with an endoscopic stapling system adapted to be advanced along an endoscope to a predetermined location within a body lumen to staple the portion of tissue, as part of an occlusal or full thickness resectioning procedure. The stapling unit comprises a first casing having a distal end, a proximal end and a stapling device mounted thereto adjacent to a first window extending through a periphery of the first casing. The invention includes methods for the stapling, severing and removal of tissue by using the device.
Images(15)
Previous page
Next page
Claims(16)
1. A stapling unit for an endolumenal stapling system comprising:
a housing including a substantially tubular wall and a distal end cap, the housing being slidably coupleable to an endoscope for advancement therealong, the tubular wall including a window extending therethrough with an anvil formed on a first edge of the window, the housing further including a stapling apparatus mounted within the housing for movement between a stapling position in which a staple firing surface of the stapling apparatus is adjacent to the anvil and a tissue receiving position in which the staple firing surface is separated from the anvil to open the window and expose a tissue receiving cavity within an interior of the housing, the staple firing apparatus driving a staple across the staple firing surface through tissue in the tissue receiving cavity; and
a tissue grasping mechanism extendible through the window for drawing tissue through the window into the tissue receiving cavity.
2. The stapling unit according to claim 1, further comprising:
a control handle which, when the housing is in an operative position within a body lumen, remains outside the body; and
a flexible sheath extending from the control handle to a proximal end of the housing.
3. The stapling unit according to claim 2, wherein the flexible sheath has a column strength sufficient to allow an operator to push the housing along an endoscope into a body lumen by pushing the flexible sheath into the body lumen.
4. The stapling unit according to claim 1, wherein the stapling apparatus is mounted within the housing for rotation about an axis of the housing between the stapling and tissue receiving positions.
5. The stapling unit according to claim 1, wherein the stapling apparatus is mounted within the housing for motion substantially parallel to a longitudinal axis of the housing.
6. The stapling unit according to claim 1, wherein the housing includes an endoscope receiving lumen extending thereinto from a proximal opening to a distal opening formed in the distal end cap.
7. The stapling unit according to claim 6, further comprising:
a control handle which, when the housing is in an operative position within a body lumen, remains outside the body; and
a flexible sheath extending from the control handle to a proximal end of the housing, wherein in an operative configuration, an endoscope is slidably received within the endoscope receiving lumen of the housing and extends through the sheath to the control handle.
8. The stapling unit according to claim 1, further comprising:
a tissue cutting mechanism mounted within the housing for cutting tissue located radially within a portion of tissue stapled by the stapling apparatus.
9. The stapling unit according to claim 8, wherein the tissue cutting mechanism includes a partially cylindrical member rotatably mounted within the housing radially within the stapling apparatus and including an angled tissue cutting surface.
10. The stapling unit according to claim 1, wherein the stapling apparatus is mounted within the housing to rotate about an axis thereof across the window.
11. The stapling unit according to claim 1, wherein the stapling apparatus is mounted within the housing to move along an axis thereof across the window.
12. A method of endolumenally resecting tissue within a body lumen, comprising the steps of:
endoscopically locating a portion of tissue to be resected within a body lumen;
sliding a housing along the endoscope to a desired position adjacent to the portion of tissue to be resected, the housing including a substantially tubular wall and a distal end cap, the tubular wall including a window extending therethrough with an anvil formed on an edge of the window, the housing further including a stapling apparatus movably mounted therewithin, defining a staple firing surface and opening and closing the window as it moves within the housing between a tissue receiving position and a stapling position;
moving the stapling apparatus to the tissue receiving position to open the window;
drawing the portion of tissue to be resected into the housing through the window folded over so that two full thicknesses of tissue of a wall of the body lumen are received within the window;
moving the stapling apparatus to the stapling position clamping the portion of tissue to be resected between the stapling apparatus and the anvil;
driving staples from across the staple firing surface through the two thicknesses of wall tissue to couple the two thicknesses of wall tissue to one another; and
cutting tissue radially within the stapled tissue from the stapled tissue.
13. The method according to claim 12, wherein the stapling apparatus is rotated within the housing between the tissue receiving and stapling positions.
14. The method according to claim 12, wherein the stapling apparatus is moved longitudinally within the housing between the tissue receiving and stapling positions.
15. The method according to claim 12, wherein the housing is coupled to a control handle which remains outside the body by a flexible sheath and wherein the operative housing is slid along the endoscope by pushing the flexible sheath into the body lumen.
16. A system for endolumenally resecting tissue comprising:
a flexible endoscope;
a housing including a substantially tubular wall including a window extending therethrough with an anvil formed on a first edge of the window and a distal end cap, the housing being slidably coupled to the endoscope and including a stapling apparatus mounted within the housing for movement between a stapling position in which a staple firing surface of the stapling apparatus is adjacent to the anvil and a tissue receiving position in which the staple firing surface is separated from the anvil to open the window and expose a tissue receiving cavity within the housing, the staple firing apparatus driving a staple across the staple firing surface through tissue in the tissue receiving cavity; and
a tissue grasping mechanism extendible through the window for drawing tissue through the window into the tissue receiving cavity.
Description

The present application is a continuation of application Ser. No. 10/083,097, filed Feb. 26, 2002 now U.S. Pat. No. 6,716,222, which is a continuation of application Ser. No. 09/727,051, filed Nov. 30, 2000 now U.S. Pat. No. 6,398,795, entitled “Stapling and Cutting in Resectioning for Full Thickness Resection Devices.”

FIELD OF THE INVENTION

The present invention relates to a device and method for stapling tissue, and more specifically, to grasping, stapling, and cutting tissue within a body lumen.

BACKGROUND INFORMATION

When tissue surrounding a body lumen becomes cancerous or otherwise diseased, it is often necessary to remove the diseased tissue for analysis or disposal. Conventional devices and methods for such tissue removal often require open surgery to access the diseased tissue.

In addition, endoluminal tissue cutters have been known, e.g., U.S. Pat. No. 5,947,983, issued to Solar et al. (“the Solar patent”), the entire disclosure of which is expressly incorporated herein by reference. Many of these devices relied on sutures to close the resulting wound. However, these devices have often been unwieldy as the manipulation of sutures from outside the body can be extremely difficult.

SUMMARY OF THE INVENTION

The present invention is directed to a stapling unit for use with an endoscopic stapling system comprising a first casing adapted to be advanced along an endoscope to a predetermined location within a body lumen, the first casing having a distal end, a proximal end and a stapling device mounted thereto adjacent to a first window extending through a periphery of the first casing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A-1D illustrate a first embodiment of a device according to the present invention.

FIG. 1A illustrates a first view of a first embodiment of a device according to the present invention.

FIG. 1B illustrates a second view of the first embodiment of FIG. 1A.

FIG. 1C illustrates a third view of the first embodiment of FIG. 1A.

FIG. 1D illustrates a fourth view of the first embodiment of FIG. 1A.

FIG. 2A illustrates a configuration of the first embodiment of FIG. 1A, wherein the components move rotationally with respect to each other.

FIG. 2B illustrates a configuration of a second embodiment of the present invention, wherein the components move longitudinally with respect to each other.

FIGS. 3A-3C illustrate movement of a stapling device according to the present invention from a stapler retracted position to a stapler engaged position.

FIG. 3A illustrates the stapling device according to the present invention in a stapler retracted position.

FIG. 3B illustrates the stapling device of FIG. 3A in a stapler engaged position.

FIG. 3C illustrates the stapling device of FIGS. 3A and 3B in a stapler engaged position.

FIG. 4 illustrates a third embodiment of a device according to the present invention.

FIGS. 5A-5B illustrates a fourth embodiment of a device according to the present invention.

FIG. 5A illustrates a first view of the fourth embodiment of a device according to the present invention.

FIG. 5B illustrates a second view of the fourth embodiment of FIG. 5A.

FIG. 6A illustrates a configuration of the fourth embodiment of FIG. 5A, wherein the components move rotationally with respect to each other.

FIG. 6B illustrates a configuration of a fifth embodiment of the present invention, wherein the components move longitudinally with respect to each other.

FIGS. 7A-7C illustrate movement of the tissue cutter in the fourth embodiment of FIG. 5A according to the present invention from a cutter engaged position to a cutter complete position.

FIG. 7A illustrates the tissue cutter of FIG. 5A in a cutter retracted position.

FIG. 7B illustrates the tissue cutter of FIG. 5A in a cutter engaged position.

FIG. 7C illustrates the tissue cutter of FIGS. 5A in a cutter complete position.

FIG. 8 illustrates a sixth embodiment of a device according to the present invention.

FIG. 9 illustrates a seventh embodiment of a device according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides for the stapling and removal of tissue within a body lumen without resorting to open surgery and allows for the identification of tissue desired for stapling and removal from a body lumen. The device makes possible accurate, localized in-situ stapling of tissue and the severing of tissue below the staple line. A full thickness portion of a body lumen wall can be extracted quickly and simply minimizing and/or eliminating bleeding or leakage from the lumen.

FIGS. 1A-1D show a device according to the present invention. As shown in FIGS. 1A and 1B, the stapling unit 1 is part of an endoscopic stapling system 200, which comprises an endoscope 3, a control unit 8, and a shaft 210. The endoscope 3 for use with the current invention may preferably be a gastroscope or end-viewing endoscope 2 for real-time viewing of an interior 5 of a body lumen 4. The stapling unit 1 may be positioned adjacent to a portion of tissue to be stapled 7 by first insufflating the body lumen 4 and locating the portion of tissue visibly using the endoscope 3. The stapling unit may then be advanced distally along the endoscope 3 to a desired position relative to the portion of tissue 7. The stapling unit 1 can be operated remotely via a control unit 8 located outside the body during use.

FIG. 1B details the stapling unit 1 in one embodiment which can be used, for example, in an occlusal procedure. The stapling unit 1 comprises a first casing 10, which may, for example, be formed as a partially tubular member 11. The stapling unit 1 has a window 20 formed in a distal portion 15 thereof exposing an interior 16 of the stapling unit 1 to an exterior 17 of the stapling unit 1. A stapling device 50 is mounted to the unit 1 adjacent to the window 20. If an end-viewing endoscope 2 is used to find the location of the portion of tissue to be stapled 7 and kept at the location after the stapling unit 1 has been positioned there, an operator can continuously view the work done on the portion of tissue 7 by looking through the window 20 from an interior of the stapling unit 1 to an interior 5 of the body lumen 4. FIGS. 1C and 1D detail each component of the stapling unit 1. The window 20 optionally has a fixed perimeter and shape, which may, for example be rectangular. One edge 26 of the window 20 may form an anvil 12. The stapling device 50 may have a movable staple head 52, forming a staple firing edge 54, which, when the stapling device 50 is mounted in the first casing 10, faces the anvil 12.

The orientation and movement of the components in the first embodiment is shown in FIG. 2A. The stapling head 52 may be rotatably mounted within the first casing 10 so that, in a first position, the staple firing edge 54 is adjacent to the anvil 12. The stapling unit 1 may rotate, for example, about an axis substantially parallel to a longitudinal axis 14 of the first casing 10. Then, the staple head 52 is rotated relative to the first casing 10, to a second position.

An alternative orientation and movement of the components is shown in a second embodiment of a device according to the present invention, shown in FIG. 2B. In the second embodiment, the stapling head 52′ may be movably mounted in a longitudinal direction within the first casing 10′ so that, in a first position, the staple firing edge 54′ is adjacent to the anvil 12′. The stapling unit 1′ may move longitudinally, for example, parallel to an axis substantially parallel to a longitudinal axis 14′ of the first casing 10′. Then, the stapling head 52′ is moved longitudinally relative to the first casing 10′, to a second position.

Returning to the orientation and movement of the components in the first embodiment of the device according to the present invention, as detailed in FIGS. 3A-3C, the stapling device 50 can be mounted so that the staple head 52 covers a portion 24 of the window 20, while being movably coupled to the first casing 10. The size of the portion 24 of window 20 covered varies depending on whether the staple head 52 has been moved relative to the first casing 10 between a stapler retracted position (detailed in FIG. 3A) and a stapler engaged position (detailed in FIGS. 3B and 3C). When the staple head 52 is in the stapler retracted position, the staple head 52 covers a smaller portion 22 of window 20 to provide space for drawing the portion of tissue to be stapled 7 into the window 20. When the staple head 52 is moved to the stapling position, the staple head 52 covers a larger portion 23 of the window 20 so that a portion of tissue 7 received in the window 20 is grasped between the staple firing edge 54 and the anvil 12.

As shown in FIG. 3B, the distance between the staple firing edge 54 and the anvil 12 when the staple head 52 is in the stapling position is a predetermined stapling distance or thickness 63. The stapling device 50 may optionally have a position adjusting mechanism 27 (shown in FIG. 1A), operated using the control unit 8, to adjust this predetermined stapling distance 63 before firing staples (not shown) from the staple firing edge 54, through the tissue 7 and against the anvil 12. The stapling unit 1 can have a stapling actuating mechanism 28 (shown in FIG. 1B), also operated using the control unit 8 and coupled between the stapling device 50 and a proximal end 19 of the unit 1 to activate the staple head 52 to fire staples (not shown) from the staple firing edge 54, through the tissue 7, and against the anvil 12 to staple the portion of tissue 7 grasped between the staple firing edge 54 and the anvil 12.

A third embodiment of a device according to the present invention shown in FIG. 4 is similar to the first embodiment except that in the third embodiment, the stapling device 50″ may be mounted onto a second casing 70. The second casing 70, may, for example, be partially tubular member 71, which also has a window 80 formed in a distal portion thereof. The window 80 faces the window 20″ of the first casing 10″ when the second casing 70 and first casing 10″ are in a predetermined alignment with respect to one another to form an opening from an interior 16″ of the stapling unit 1″ to an exterior 17″ of the stapling unit 1″. The staple firing edge 54″ is positioned on an edge 84 of the window 80 and facing the anvil 12″ which is formed on an opposing edge 26″ of the window 20″ so that moving the staple head 52″ from the stapler retracted position to the stapling position translates into moving the distal portion 75 of the second casing 70, changing the predetermined alignment of the windows 20″ and 80 so that the staple firing edge 54″ is moved towards the anvil 12″ in direction 77.

A fourth embodiment of a device according to the present invention shown in FIGS. 5A and 5B is similar to the first embodiment except that in the fourth embodiment, the stapling unit 1′″ may also have a tissue cutter 90. The tissue cutter 90 enables the stapling unit 1′″ to be used, for example, for full thickness resectioning procedures during which a portion of tissue below the staple line is severed and removed from the body lumen 4 for testing.

The orientation and movement of the components in the fourth embodiment is shown in FIG. 6A. The cutting edge 94 may be rotatably mounted within the first casing 10′″ so that, in a first position, the cutting edge 94 is adjacent to a side 25 of the window 20′″ which is substantially parallel to a longitudinal axis 14′″ of the first casing 10′″. The tissue cutter 90 may rotate, for example, about an axis substantially parallel to a longitudinal axis 14′″ of the first casing 10′″. Then, the cutting edge 94 is rotated relative to the first casing 10′″ to cut the issue grasped between the staple device 50′″ and the anvil 12′″.

An alternative orientation and movement of the components is shown in a fifth embodiment of a device according to the present invention, shown in FIG. 6B. In the fifth embodiment, the tissue cutter 90″″ is movably mounted in a longitudinal direction within the first casing 10″″ so that, in a first position, the cutting edge 94″″ is adjacent to a side 25″″ of the window 20″″ which is substantially parallel to a circumference 18″″ of the first casing 10″″. When the tissue cutter 90″″ is moved axially relative to the first casing 10″″ and stapling device 50″″ along the longitudinal axis 14″″ of the first casing 10″″ the cutting edge 94″″ severs the tissue grasped by the staple device and the anvil.

Returning to the orientation and movement of the components in the fourth embodiment of the device according to the present invention, as detailed in FIGS. 7A-7C, the tissue cutter 90 is movably mounted to the stapling device 50′″ and the first casing 10′″ adjacent to the window 20′″. The tissue cutter 90 is movable between a retracted position (shown in FIG. 7A), where the tissue cutter 90 is withdrawn from the window 20′″, and a tissue cutting position (shown in FIG. 7B), where the tissue cutter 90 is engaged with a portion of tissue 9 to be severed. The tissue cutter 90 has a cutting edge 94 which is angled such that a first portion 97 of the cutting edge 94 contacts the portion of tissue 9 to be severed before a second portion 98 of the cutting edge 94, i.e., the cutting edge 94 is preferably formed as an angled blade.

Once a portion of tissue has been severed, the tissue cutter 90 is moved to a cutter complete position (detailed in FIG. 7C), covering the first window 20′″ completely and containing the severed portion of tissue within the first casing 10′″. Once contained, the stapling unit 1′″ is removed from the body lumen 4′″ and opened to retrieve the severed portion of tissue for possible testing. The tissue cutter 90 according to the present invention enables an operator to remove a clean tissue sample from a body lumen.

Movement of the tissue cutter 90 may be controlled by a cutting actuator mechanism 99 (shown in FIG. 1A) coupled between a proximal end 19 of the unit 1 and the tissue cutter 90, and operated remotely via the control unit 8. The tissue cutter 90 also preferably has a safety mechanism which prevents the operator from engaging the tissue cutter 90 until after the operator determines that all the staples have been properly fired.

A sixth embodiment of a device according to the present invention shown in FIG. 8 is similar to the fourth embodiment except that in the sixth embodiment, the tissue cutter 90′″″ may be mounted on a third casing 110. The third casing 110 may, for example, be a partially tubular member 111, which also has a window 120 formed in the distal portion 115 thereof. The window 120 faces the window 20′″″ of the first casing 10′″″ when the third casing 110, the stapling device 50′″″ and first casing 10′″″ are in a predetermined alignment with respect to one another to form an opening from an interior 16′″″ of the stapling unit 1′″″ to an exterior 17′″″ of the stapling unit 1′″″. The cutting edge 94′″″ is positioned adjacent to an edge 124 of the window 120, and the cutting edge 94′″″ preferably may still be angled as shown in FIGS. 5A and 7B, so that a first portion 97′″″ of the cutting edge 94′″″ contacts the tissue to be cut before a second portion 98′″″ of the cutting edge 94′″″. Rotational movement of the tissue cutter 90′″″ from the retracted position to the tissue cutting position translates into rotational movement of the distal portion 115 of the third casing 110, changing the predetermined alignment of the windows 20′″″ and 120 so that the cutting edge 94′″″ is moved towards the opposing edge 21′″″ of the window 20′″″ on the first casing 10′″″ in direction 117.

In a seventh embodiment detailed in FIG. 9, the stapling unit 1″″″ operates similarly as described above, but is comprised of three concentric tubes 11″″″, 71″″″ and 111″″″ with windows 20″″″, 80″″″, and 120″″″ which form an opening 124″″″ from an interior 16″″″ of the stapling unit 1″″″ to an exterior 17″″″ of the stapling unit 1″″″. One edge 26″″″ of the window 20″″″ on the first tube 11″″″ forms an anvil 12″″″. The stapling device 50″″″ is mounted to second tube 71″″″ which is movably mounted within the first tube 11″″″, and an edge 84″″″ on the window 80″″″ on the second tube 71″″″ forms a staple firing edge 54″″″ which faces the anvil 12″″″. The tissue cutter 90″″″ is mounted to the third tube 111″″″ which is movably mounted within the second tube 71″″″ and the first tube 11″″″, and an edge 124″″″ of the window 120″″″ on the third tube 111″″″ forms the cutting edge 94″″″.

Any of the embodiments of the present invention may optionally include a tissue grasper 60 (detailed in FIG. 1B) within the stapling unit 1, to draw the portion of tissue 7 to be stapled and the portion of tissue to be cut into the window 20 to an interior 16 of the stapling unit 1 when the stapling device 50 and tissue cutter 90 are withdrawn to retracted positions. As known in the art, the tissue grasper 60 grabs the portion of tissue 7 with, for example, a pair of jaws 61, while a vacuum tube (not shown) sucks tissue 7 through the window 20 by creating negative pressure within the window 20. Alternatively, suction may be applied through the device to draw the portion of tissue 7 to be stapled and the portion of tissue 9 to be cut into the window 20 to an interior 16 of the stapling unit 1.

The present invention provides a device and method for the minimally-invasive grasping, stapling and removal of diseased tissue from within a body lumen. Those with skill in the art may recognize various modifications to the embodiments of the invention described and illustrated herein. Such modifications are meant to be covered by the spirit and scope of the appended claims.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US5037021 *May 24, 1989Aug 6, 1991University College LondonSewing machine
US5047027 *Apr 20, 1990Sep 10, 1991Everest Medical CorporationTumor resector
US5197649 *Oct 29, 1991Mar 30, 1993The Trustees Of Columbia University In The City Of New YorkGastrointestinal endoscoptic stapler
US5395030 *Jun 2, 1993Mar 7, 1995Olympus Optical Co., Ltd.Surgical device for stapling and fastening body tissues
US5445644 *Mar 30, 1994Aug 29, 1995Ethicon, Inc.Pyloroplasty/pylorectomy shield
US5458112 *Aug 15, 1994Oct 17, 1995Arrow Precision Products, Inc.Biliary biopsy device
US5569277 *Dec 19, 1994Oct 29, 1996Devices For Vascular Intervention, Inc.Atherectomy device having helical blade and blade guide
US5603250 *Dec 22, 1994Feb 18, 1997Wellcutter, Inc.Radial cutting tool having indexed pair of bit-subassemblies with simultaneous feed for cutting thick-walled tubes
US5609285 *Apr 6, 1995Mar 11, 1997Ethicon, Inc.Surgical anastomosis stapling instrument with flexible support shaft and anvil adjusting mechanism
US5643304 *Jun 7, 1995Jul 1, 1997Danek Medical, Inc.Method and apparatus for minimally invasive tissue removal
US5868760 *Dec 7, 1994Feb 9, 1999Mcguckin, Jr.; James F.Method and apparatus for endolumenally resectioning tissue
US5928163 *Jun 27, 1997Jul 27, 1999Boston Scientific CorporationBiopsy sampler
US5947983 *Mar 16, 1998Sep 7, 1999Boston Scientific CorporationTissue cutting and stitching device and method
US6119913Jun 14, 1996Sep 19, 2000Boston Scientific CorporationEndoscopic stapler
EP0174843A2Sep 11, 1985Mar 19, 1986University College LondonSewing machine
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7875053 *Sep 15, 2006Jan 25, 2011Cardica, Inc.Apparatus and method for closure of patent foramen ovale
US7882995 *Feb 12, 2008Feb 8, 2011Boston Scientific Scimed, Inc.Stapling and cutting in resectioning for full thickness resection devices
US7896890 *Sep 2, 2005Mar 1, 2011Ethicon Endo-Surgery, Inc.Method and apparatus for endoscopically performing gastric reduction surgery in a single step
US8430808Aug 25, 2009Apr 30, 2013Maeroplata, Inc.Endoscopic method and device for avoiding cutting of rectal tissue in the treatment of hemorrhoids
US8448831 *Jan 18, 2011May 28, 2013Boston Scientific Scimed, Inc.Stapling and cutting in resectioning for full thickness resection devices
US8632458Oct 26, 2011Jan 21, 2014Macroplata Inc.Gentle hemorrhoid treatment offering a substantially painless healing
US8695866Oct 1, 2010Apr 15, 2014Ethicon Endo-Surgery, Inc.Surgical instrument having a power control circuit
US8715166Aug 25, 2009May 6, 2014Macroplata Inc.Gentle method of treating a hemorrhoid
US8863748 *Jul 31, 2008Oct 21, 2014Olympus Medical Systems Corp.Endoscopic surgical operation method
US8926598Mar 15, 2011Jan 6, 2015Ethicon Endo-Surgery, Inc.Surgical instruments with articulatable and rotatable end effector
US8968275Apr 26, 2011Mar 3, 2015Covidien LpApparatus and method for effecting at least one anatomical structure
US9011317Dec 13, 2013Apr 21, 2015Covidien LpGentle hemorrhoid treatment offering a substantially painless healing
EP2149338A1Jul 30, 2009Feb 3, 2010Olympus Medical Systems CorporationSuture instrument for endoscope
Classifications
U.S. Classification227/175.1
International ClassificationA61B1/00, A61B17/072, A61B17/10, A61B17/04, A61B17/22
Cooperative ClassificationA61B17/320783, A61B2017/07214, A61B17/072, A61B2017/07221, A61B17/068, A61B2017/32004
European ClassificationA61B17/068, A61B17/072
Legal Events
DateCodeEventDescription
Jul 21, 2011FPAYFee payment
Year of fee payment: 4
Mar 2, 2005ASAssignment
Owner name: BOSTON SCIENTIFIC SCIMED, INC., MINNESOTA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCIMED LIFE SYSTEMS, INC.;REEL/FRAME:016322/0054
Effective date: 20041222
Jan 26, 2004ASAssignment
Owner name: SCIMED LIFE SYSTEMS, INC., MINNESOTA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MCALISTER, GARY;SAKAL, ROBERT L.;REEL/FRAME:015681/0777;SIGNING DATES FROM 20000830 TO 20001030